Sash-balance.



S. E. PARKS.

SASH BALANCE. API LIOATION FILED JUNE 24, 1907.

Patented Oct. 20, 1908.

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SASH BALANCE.

APPLICATION FILED JUNE 24.19%,

Patented Oct. 20, 1908.

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' spective 'the bore 7 is a socket STEPHEN EDWARD ItiRKs, or PORTLAND,

T. H. ARNOLD, OF POR NORTH DAKOTA, ASSIGNOR OF ONE-HALF TO TLAND, NORTH DAKOTA.

SASH-B ALANCE i No. 901,553.

Specification of Iiettei's Patent.

Patented Oct. 20, 1908.

Application filed June 24, 1907. Serial No. 380,637.

I '0 all whom 1' t may concern:

Be it known that I, STEPHEN EDWARD PARKS, a citizen of the United States, residing at Portland, in thecounty of Traill, State of North Dakota, have invented certain new and useful Improvements in Sash-Balances; and I do'herebv declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. g

This invention relates to sash balances and has for its object to 'rovide a device of this class which serves to old either of the sashes of a window at any are raised or lowered as the case may be.

have in view the provision of a spring controlled device of this class which, while simple in construction, will at all times be effective and will not bind under any circumstances.

In the accompanying drawings, Figure 1 is a front elevation of a window showing my device in use, parts of the window sash being broken away to more'clearly show the invention, Fig. 2 is a detail vertical sectional view taken through one of the stiles of the sash and the corres onding stile of the frame, Fig; 3 is a sirniliir view but taken in a hori= zontal plane, the device being shown however in top plan, and, Fig. 4 isa detail perdevice removed from its socket.

In the drawings, there is shown a window sash including a stile 5 and a window frame in which the sash is mounted, the stile of the frame being indicated by the numeral 6.

Formed in the stile 5 of the window sash are a number of bores or sockets 7 which open into countersinks 8 also formed in the said stile and in the edge face thereof. Seated in 9 which is cylindrical in form and has its open end flush with-the inner wall of the countersink 8 and received in this socket is a stud 10 which is formed integral with the rear face of a friction plate 11. A spring 12 is also seated in the socket and this s ring bears against the inner or closed end 0 the socketand against the inner end of the stud 10 and thereby serves to force the elevation to which they View of the friction element of the stud and the friction outwardly and against the face of the stile of the window frame mentioned above. The ends of this friction plate are curved inwardly slightly as at 13 so as not to bite into the window frame stile and thereby cause binding of the ,balance.

From the foregoing it will be readily understood that under all conditions and at all times, the friction plate is held tightly against the face of the stile of the WlIldOW frame and that consequently the sash will be held to bear against the other stile of the window frame, the sash being held by this means at any oint in its sliding movement. Furthermore tli prevented from rattling in windy weather.

As shown in the drawings, the devices are located at one side of the window sash only and consequently the result above mentioned will be attained.

What is claimed, is

Ina device of the class described, the commation with a window sash stile and the corresponding stile of thewindow frame, the sash stile being provided with a countersink and with a bore opening into the countersink, of a friction late, the said plate having its upper and l dwer ends turned bodily inwardly, a stud formed integral with the inner face of the friction late at a point mid-way of its said ends, t e ends resting at their extremities normally against the inner wall of the countersink, the stud being formed. with an enlargement, a socket seated in said bore, the enlargement u 701'! the stud seating normally against the enc of said socket, and a spring within the socket and bearing against the end pf the stud to hold the friction plate flat against the stile of the window fi'ame, the enlargement u on the stud servmg to prevent inward hen ing of the friction plate at its middle.

In testimony whereof, I aifix my slgnature, in presence of two witnesses.

STEPHEN EDWARD PARKS.

Witnesses T. H. 'ARNoLD, ALBERT SPARROW.

plate carried thereby e sash will be in this manner 7 

